CN208607411U - A kind of lens focusing device - Google Patents
A kind of lens focusing device Download PDFInfo
- Publication number
- CN208607411U CN208607411U CN201821396638.1U CN201821396638U CN208607411U CN 208607411 U CN208607411 U CN 208607411U CN 201821396638 U CN201821396638 U CN 201821396638U CN 208607411 U CN208607411 U CN 208607411U
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- frame
- main cylinder
- ring
- locating part
- adjust
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- 238000004519 manufacturing process Methods 0.000 abstract description 4
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- 238000000034 method Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 4
- 238000009966 trimming Methods 0.000 description 4
- 230000006641 stabilisation Effects 0.000 description 3
- 238000011105 stabilization Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 239000011324 bead Substances 0.000 description 1
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- 238000012986 modification Methods 0.000 description 1
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Abstract
The utility model discloses a kind of lens focusing device, including frame, main cylinder and frame adjust ring, the front end periphery of frame is equipped with frame threaded portion, frame adjusts ring with frame by frame threaded portion and is threadedly coupled, frame and frame adjust ring set and set in main cylinder, and between frame and main cylinder by the first locating part limit frame can only main cylinder relatively along moving axially back and forth, frame adjust between ring and main cylinder by the second locating part limit frame adjusting ring can only relatively main cylinder circumferentially rotate, the end periphery of main cylinder is equipped with main cylinder threaded portion, main cylinder is threadedly coupled by main cylinder threaded portion with video camera adapter ring, main cylinder relative camera adapter ring remains stationary when focusing, adjusting ring by rotation frame moves axially back and forth the relatively main cylinder of frame to focus；The utility model is compact-sized, assembles simple, convenient and fast, reduces manufacturing cost, and focusing is convenient and stablizes, and frame adjusts the tooth of screw thread between ring and frame away from can flexible choice according to actual needs.
Description
Technical field
The utility model relates to lens technology fields, and in particular to a kind of lens focusing device.
Background technique
The existing lens focusing structure with facing mechanism, main cylinder, facing, frame use be threadedly engaged between any two,
In focussing process, facing is rotated, its relatively main cylinder is moved axially.Since facing rotationally and axially moves, will drive
Frame is axially moved, and then achievees the purpose that focusing.But it is threadedly engaged to manage between facing and main cylinder, frame and screw
Smooth not shake, difficulty of processing coefficient is big, and in focussing process, facing can relatively main cylinder be subjected to displacement, and focus it is effective
The essence of movement is that frame is subjected to displacement with main cylinder.Facing movement can influence focussing process, need to consider this in the design
Some effects, and deduct.And the back-and-forth motion reserved margin that facing need to be thought of as when designing prevents locking, and the structure of camera lens is set
Meter is often compact, increases the difficulty and limitation of design.And in assembling, main cylinder, facing, rear mirror frame mutual alignment are needed
Fixation is debugged two-by-two, assembles cumbersome trouble, and consuming working hour is more, and error probability is high.
The lens regulating structure of existing strap cam mechanism, main cylinder are adjusted between ring, frame using guide pin connection, are led
Nail lock is paid on frame, is adjusted ring and is equipped with cam path, main cylinder is equipped with straight trough.Rotation adjusts ring, cam path band when focusing
It moves guide pin to move in the straight trough of main cylinder, and then moves axially frame relative to main cylinder.But cam structure is very
Hardly possible, which meets, needs the camera lens of Precision trimming to use.For example it is unable to satisfy focusing and requires: the adjusting ring of frame, which rotates 360 °, makes mirror
The frame displacement that only 0.5mm occurs for relatively main cylinder is even more small, and the requirement of Precision trimming is not achieved.
Utility model content
In view of the deficiencies of the prior art, the utility model provides a kind of lens focusing device, compact-sized, and design is closed
Reason, assembling is simple, convenient and fast, reduces manufacturing cost, and focusing is convenient and stablizes, and changes frame adjusting by replacement accessory
The tooth of screw thread changes main cylinder axial displacement opposite with frame away from the rotational angle that frame adjusting ring can be adjusted between ring and frame
Ratio relation between variation, to meet various focusing demands.
In order to achieve the above objectives, the utility model is achieved through the following technical solutions:
A kind of lens focusing device, including frame, main cylinder and frame adjust ring, and the front end periphery of frame is equipped with frame spiral shell
Line portion, frame adjust ring with frame by frame threaded portion and are threadedly coupled, and frame and frame adjust ring set and set in main cylinder, and mirror
Limit by the first locating part that frame can only along moving axially back and forth, frame adjusts ring and main cylinder for main cylinder relatively between frame and main cylinder
Between by the second locating part limit frame adjust ring can only relatively main cylinder circumferentially rotate, the end periphery of main cylinder is equipped with main cylinder
Threaded portion, main cylinder are threadedly coupled by main cylinder threaded portion with video camera adapter ring, and the main cylinder relative camera adapter ring holding of when focusing is not
Dynamic, adjusting ring by rotation frame moves axially back and forth the relatively main cylinder of frame to focus.
Further, the lens focusing device further includes that diaphragm adjusts component, and diaphragm adjusts component and includes moving-coil, drives
Ring drives nail and aperture setting ring, moving-coil to be nested in frame with being able to rotate, circumferentially offer and be connected in frame on frame
The frame resigning long hole in portion, band rotating ring are located between main cylinder and frame and are nested on frame periphery, and band rotating ring, which is equipped with, to be driven
Ring elongated slot, moving-coil extends outward a long handle by frame resigning long hole, and long handle is extend into band rotating ring elongated slot and by driving
Annulus moves moving-coil rotation, and aperture setting ring is nested on main cylinder periphery, and main cylinder is equipped with main cylinder resigning long hole, drives nail across master
Aperture setting ring is connected to enable with rotating ring by cylinder resigning long hole to be rotated and then is driven by aperture setting ring control with rotating ring
The rotation of moving-coil is to adjust diaphragm.
Further, aperture setting ring fastening nail is threaded on the aperture setting ring to lock after the completion of diaphragm is adjusted
Tight aperture setting ring.
Further, the first locating part connection is arranged on frame, and main tube inner surface is equipped with and the first locating part phase
The axial straight trough of cooperation, by the first locating part limit frame can only relatively main cylinder axially move forward and backward cannot phase for straight trough
Main cylinder is circumferentially rotated.
Further, the second locating part connection setting is adjusted on ring in frame, and main tube inner surface is equipped with and the second limit
The circumferential annular groove that matches of position part, by the second locating part limit frame adjust ring can only relatively main cylinder circumferentially annular groove
Rotation and cannot main cylinder relatively along moving axially back and forth.
Further, the through-hole for being connected to circumferential annular groove is offered on the main cylinder, the second locating part is removable by through-hole
It connects setting with unloading adjust on ring in frame and match with circumferential annular groove.
Further, it is threaded with frame on the main cylinder and adjusts ring fastening nail to lock frame adjusting after the completion of focusing
Ring.
Further, the frame adjusts ring and extends main cylinder front end and form the rotation section for adjusting ring convenient for rotation frame.
Further, first locating part and the second locating part are guide pin.
Lens focusing device described in the utility model, has the advantages that
1, which has a compact structure and a reasonable design, assembling is simple, convenient and fast, reduces manufacturing cost, reduces work intensity, reduces
Error probability is assembled, the quality of product is improved.
2, focus adjustment and diaphragm are easy to adjust and stable, and adjusting ring by rotation frame can focus, and have focused
Finish after screw frame adjust ring fastening nail can lock frame adjust ring prevent it is out of focus, by rotary diaphragm adjust ring can carry out
Diaphragm is adjusted, and diaphragm screws diaphragm adjusting light fastening nail and can lock aperture setting ring and guarantee image stabilization after adjusting.
3, frame adjusts and connects the Precision trimming, it can be achieved that focal length by the way of being threadedly coupled between ring and frame.
4, the tooth for changing screw thread between frame adjusting ring and frame by replacement accessory adjusts ring away from frame can be adjusted
Rotational angle variation main cylinder axial displacement variation opposite with frame between ratio relation, frame adjusts spiral shell between ring and frame
The tooth of line away from can flexible choice according to actual needs, to meet various focusing demands.
Detailed description of the invention
Fig. 1 is the schematic perspective view of the utility model embodiment one.
Fig. 2 is the partial structural diagram of the utility model embodiment one.
Fig. 3 is the stereochemical structure decomposing schematic representation of the utility model embodiment one.
Fig. 4 is the stereochemical structure decomposing schematic representation of another angle of the utility model embodiment one.
Fig. 5 is the partial structural diagram after the stereochemical structure of the utility model embodiment one is symmetrically splitted.
Fig. 6 is the cross-sectional view of the utility model embodiment one.
Label declaration:
1, frame, 11, frame threaded portion, 12, frame resigning long hole；
2, main cylinder, 21, main cylinder threaded portion, 22, main cylinder resigning long hole, 23, axial straight trough, 24, circumferential annular groove, 25, logical
Hole, 26, frame adjusting ring fastening nail；
3, frame adjusts ring, 31, rotation section；
4, the first locating part；
5, the second locating part；
6, diaphragm adjusting component, 61, moving-coil, 611, long handle, 62, band rotating ring, 621, band rotating ring elongated slot, 63, drive nail,
64, aperture setting ring, 65, aperture setting ring fastening nail.
Specific embodiment
The utility model is further described with reference to the accompanying drawings and embodiments.
In the description of the present invention, it should be understood that term " on ", "lower", "front", "rear", "left", "right",
The orientation or positional relationship of the instructions such as "top", "bottom", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, and is only
For ease of description the utility model and simplify description, rather than the device or element of indication or suggestion meaning must have it is specific
Orientation, be constructed and operated in a specific orientation, therefore should not be understood as limiting the present invention.
Embodiment one
Attached drawing 1 is please referred to attached drawing 6, in the utility model embodiment, a kind of lens focusing device, including frame 1, main cylinder
2 and frame adjust ring 3, the front end periphery of frame 1 is equipped with frame threaded portion 11, and frame 1 passes through frame threaded portion 11 and frame
It adjusts ring 3 to be threadedly coupled, frame 1 and frame adjust ring 3 and be nested in main cylinder 2, and pass through the first limit between frame 1 and main cylinder 2
Position part 4 limit frame 1 can only relatively main cylinder 2 along move axially back and forth and cannot relatively main cylinder 2 circumferentially rotate, frame adjust ring 3
Between main cylinder 2 by the second locating part 5 limit frame adjust ring 3 can only relatively main cylinder 2 circumferentially rotate cannot relatively main cylinder 2
Along moving axially back and forth, the end periphery of main cylinder 2 is equipped with main cylinder threaded portion 21, and main cylinder 2 passes through main cylinder threaded portion 21 and camera shooting
Machine adapter ring is threadedly coupled, and when focusing, main 2 relative camera adapter ring of cylinder remained stationary, and adjusting ring 3 by rotation frame makes 1 phase of frame
Main cylinder 2 is moved axially back and forth to focus.
Attached drawing 1 is please referred to attached drawing 6, in the present embodiment, lens focusing device further includes that diaphragm adjusts component 6, diaphragm tune
Section component 6 includes moving-coil 61, band rotating ring 62, nail 63 and aperture setting ring 64, moving-coil 61 is driven to be nested with being able to rotate in frame 1
It is interior, the frame resigning long hole 12 being connected to inside frame 1 is circumferentially offered on frame 1, band rotating ring 62 is located at main cylinder 2 and frame
It between 1 and is nested on 1 periphery of frame, band rotating ring 62 is equipped with band rotating ring elongated slot 621, and moving-coil 61 passes through frame resigning long hole 12
A long handle 611 is extended outward, and long handle 611 extend into band rotating ring elongated slot 621 and drives moving-coil 61 to rotate by band rotating ring 62,
Aperture setting ring 64 is nested on main 2 periphery of cylinder, and main cylinder 2 is equipped with main cylinder resigning long hole 22, is driven nail 63 to pass through main cylinder and is stepped down
Aperture setting ring 64 is connected to enable with rotating ring 62 by long hole 22 to be rotated in turn with rotating ring 62 by the control of aperture setting ring 64
Drive the rotation of moving-coil 61 to adjust diaphragm.In the present embodiment, it is preferable that drive nail 63 that spiral shell can be used with the assembly with rotating ring 62
The mode of line connection connects, and gap fiting mode connection can also be used, and gap size control is limited in 0~0.05mm, but not
It is also possible to other connection structures, such as screw, bolt in this, and it will be understood by those skilled in the art that driving and following closely 63, as long as
Aperture setting ring 64 can be connected and with rotating ring 62, rotated so that aperture setting ring 64 can control with rotating ring 62.The present embodiment
In, it is preferable that a step surface is equipped with inside frame 1, moving-coil 61 is fitted on the step surface, and the long handle 611 of moving-coil 61 passes through mirror
Frame resigning long hole 12 is extend into the band rotating ring elongated slot 621 with rotating ring 62, and in the present embodiment, band rotating ring elongated slot 621 can not only match
Closing long handle 611 drives moving-coil 61 to rotate, and resigning effect can be formed in focusing, and when focusing, moving-coil 61 and long handle 611 are with frame
1 relatively main cylinder 2 synchronously moves axially back and forth, and remains and be not moved forward and backward in the axial direction with the relatively main cylinder of rotating ring 62,
And it may make long handle 611 that can slide back and forth in rotating ring elongated slot 621 with rotating ring elongated slot 621 and guarantee without limitation on focal length
It adjusts, and also makes after focusing, ring 64 can be adjusted by rotary diaphragm and realizes the purpose that diaphragm is adjusted.
It please refers to attached drawing 5, attached drawing 6, in the present embodiment, aperture setting ring fastening nail is threaded on aperture setting ring 64
65 after the completion of diaphragm is adjusted to lock aperture setting ring 64.
Attached drawing 3 is please referred to attached drawing 6, in the present embodiment, the connection of the first locating part 4 is arranged on frame 1, table in main cylinder 2
Face is equipped with the axial straight trough 23 matched with the first locating part 4, and limiting frame 1 by the first locating part 4 can only relatively main cylinder 2
Axially straight trough 23 move forward and backward and cannot relatively main cylinder 2 circumferentially rotate.
Attached drawing 3 is please referred to attached drawing 6, in the present embodiment, the connection setting of the second locating part 5 is adjusted on ring 3 in frame, main cylinder
2 inner surfaces are equipped with the circumferential annular groove 24 matched with the second locating part 5, limit frame by the second locating part 5 and adjust ring 3
Can only relative to main cylinder 2 circumferentially the rotation of annular groove 24 and cannot relatively main cylinder 2 along moving axially back and forth.It is excellent in the present embodiment
Selection of land, the through-hole 25 for being connected to circumferential annular groove 24 is offered on main cylinder 2, and the second locating part 5 is removably connected by through-hole 25
Setting is connect to adjust on ring 3 in frame and match with circumferential annular groove 24.In the present embodiment, it is preferable that offer three on main cylinder 2
A through-hole 25 for being connected to circumferential annular groove 24.
Please refer to attached drawing 5, attached drawing 6, in the present embodiment, be threaded on main cylinder 2 frame adjust ring fastening nail 26 with
Locking frame adjusting ring 3 prevents out of focus after the completion of focusing.
In the present embodiment, it is preferable that the first locating part 4 and the second locating part 5 can be guide pin, in the present embodiment, guide pin
The mode of threaded connection can be used in assembly with frame adjusting ring 3 and frame 1, and the mode that interference fit can also be used connects,
But not limited to this.In the present embodiment, it is preferable that frame adjusted ring 3 and frame 1 is all uniformly distributed that there are three lead in the circumferential
The mounting hole of nail is mounted on guide pin on each mounting hole, and on the inner surface of main cylinder 1 uniformly arrangement there are three on frame 1
The axial straight trough 23 that matches of three guide pins, being mounted on guide pin on each mounting hole may make frame to adjust ring 3 circumferentially
The rotation of annular groove 24 is more stable, frame 1 axially straight trough 23 slide back and forth it is more stable.Furthermore those skilled in the art should manage
Solution, the first locating part 4 and the second locating part 5 can also other plain screws or bolt, as long as it is relatively main to adjust ring 3 to frame
The rotation of cylinder 2, which play the guiding role and matches limitation frame with circumferential annular groove 24, adjusts the relatively main cylinder 2 of ring 3 along transporting axially back and forth
It is dynamic, and to the relatively main cylinder 2 of frame 1 along moving axially back and forth, and it is circumferential to cooperate axial straight trough 23 to limit the relatively main cylinder 2 of frame 1
Rotation.In addition, the first locating part 4 can also be the retention bead structure matched with axial straight trough 23, and integrally
It is molded on frame 1.
Please refer to attached drawing 5, attached drawing 6, in the present embodiment, frame adjusts ring 3 and extends main 2 front end of cylinder and formed convenient for rotation
The rotation section 31 of frame adjusting ring 3.In the present embodiment, it is preferable that adjusted in frame and be also formed with backstop limit work together on ring 3
Step in assembling process, when the step surface that frame adjusts ring 3 is against the front end of main cylinder 2, may make frame to adjust ring 3
On the mounting hole of guide pin be just aligned with the circumferential annular groove 24 of main cylinder in order to which guide pin is installed to frame by through-hole 25
It adjusts on ring 3, while assembly precision also can be improved, the stability for promoting lens focus guarantees image stabilization.
Please refer to attached drawing 1, in the present embodiment, it is preferable that adjust rotation section 31 and the aperture setting ring 64 of ring 3 in frame
The ripple convenient for rotation is equipped on periphery.
When assembly, diaphragm piece, lens set and moving-coil 61 are assembled in frame 1 first, the long handle 611 of moving-coil 61 stretches out,
By the drive of long handle 611 so that moving-coil 61 can circumferentially be rotated relative to frame 1, and be remained stationary in the axial direction with respect to frame 1；
Then frame 1 and frame ring 3 is adjusted by frame threaded portion 11 to be threaded togather, it then will be with 62 sets of rotating ring in frame
On 1, and will be aligned with rotating ring elongated slot 621 with long handle 611 extend into long handle 611 in band rotating ring elongated slot 621, then by the first limit
Position part 4 (guide pin) is assembled on the end of frame 1, then by the frame 1 assembled, frame adjusting ring 3 and with rotating ring 62 etc. one
It wears together into main cylinder 2, the first locating part 4 (guide pin) on frame 1 is aligned with the axial straight trough 23 on main 2 inner surface of cylinder,
So that frame 1 can only relatively main cylinder 2 axially straight trough 23 move forward and backward and cannot relatively main cylinder 2 circumferentially rotate, then pass through
Second locating part 5 (guide pin) is assembled on frame adjusting ring 3 and makes the second locating part 5 and main cylinder 2 by the through-hole 25 on main cylinder 2
Circumferential annular groove 24 on inner surface match with limit frame adjust ring 3 can only relatively main cylinder 2 circumferentially 24 turns of annular groove
It is dynamic and cannot relatively main cylinder 2 along moving axially back and forth, aperture setting ring 64 is then nested on main 2 periphery of cylinder, will then be driven
Nail 63 passes through from 64 surface of aperture setting ring and by the main cylinder resigning long hole 22 on main cylinder 2 and the band rotating ring being located in main cylinder 2
62 are connected, so that can be rotated and then by driving nail 63 to control band rotating ring 62 by band rotating ring when rotation aperture setting ring 64
Elongated slot 621 cooperates long handle 611 to drive moving-coil 61 circumferentially to rotate to realize that diaphragm is adjustable, and frame is then adjusted fastening nail again
26 and aperture setting ring fastening nail 65 be respectively assembled on main cylinder 2 and aperture setting ring 64 after complete whole assembly.
In use, first screw main cylinder 2 with video camera adapter ring by main cylinder threaded portion 21, when focusing, revolving mirror is only needed
Frame adjusts the rotation section 31 of ring 3 and then drives the relatively main cylinder 2 of frame 1 along moving axially back and forth to focus, and after the completion of focusing, screws
Frame on main cylinder 2, which adjusts ring fastening nail 26 and adjusts ring 3 to lock frame, to be prevented out of focus, when adjusting diaphragm, passes through rotary diaphragm
Adjusting ring 64 makes that 63 control band rotating ring 62 of nail is driven to rotate and then cooperate long handle 611 to drive moving-coil 61 by band rotating ring elongated slot 621
It circumferentially rotates to realize that diaphragm is adjusted, after diaphragm is adjusted, screws the aperture setting ring fastening nail on aperture setting ring 64
65 can lock aperture setting ring 64.
The utility model which has a compact structure and a reasonable design, assembling is simple, convenient and fast, reduces manufacturing cost, reduces work
Intensity reduces assembly error probability, improves the quality of product.Focus adjustment and diaphragm are easy to adjust and stable, pass through rotation
Frame adjusts ring 3 and can focus, and frame can be locked to adjust ring 3 anti-by frame is screwed after focusing adjusting ring fastening nail 26
Only out of focus, diaphragm adjusting can be carried out by adjusting ring 64 by rotary diaphragm, and diaphragm screws diaphragm and adjusts light fastening after adjusting
Nail 65 can lock aperture setting ring 64 and guarantee image stabilization.Frame is adjusted between ring 3 and frame 1 using the side being threadedly coupled
Formula connects the Precision trimming, it can be achieved that focal length.Change the tooth that frame adjusts screw thread between ring 3 and frame 1 by replacement accessory
It is closed away from the ratio that can be adjusted between the rotational angle variation of frame adjusting ring 3 and relatively main 2 axial displacement of the cylinder variation of frame 1
System, frame adjust the tooth of screw thread between ring 3 and frame 1 away from can flexible choice according to actual needs, to meet various focusing demands.
Embodiment two
The difference between this embodiment and the first embodiment lies in the connection of the first locating part 4 is arranged in main cylinder 2 in the present embodiment
On surface, frame 1 is equipped with the axial straight trough matched with the first locating part 4, and limiting frame 1 by the first locating part 4 can only
Relatively main cylinder 2 axially straight trough move forward and backward and cannot relatively main cylinder 2 circumferentially rotate.
The above, embodiment are only to illustrate the technical solution of the utility model, rather than its limitations；Although referring to before
Embodiment is stated the utility model is described in detail, those skilled in the art should understand that: it still can be with
It modifies to technical solution documented by previous embodiment, or some technical characteristics therein is equivalently replaced；And
These modifications or substitutions do not make corresponding technical solution be detached from the spirit and scope of the utility model embodiment technical solution, because
This every other embodiment obtained by those of ordinary skill in the art without making creative efforts belongs to this
The protection scope of utility model.
Claims (9)
1. a kind of lens focusing device, it is characterised in that: adjust ring (3) including frame (1), main cylinder (2) and frame, frame (1)
Front end periphery be equipped with frame threaded portion (11), frame (1) adjusts ring (3) screw thread by frame threaded portion (11) and frame and connects
It connects, frame (1) and frame adjust ring (3) and be nested in main cylinder (2), and pass through the first locating part between frame (1) and main cylinder (2)
(4) limitation frame (1) can only main cylinder (2) relatively along moving axially back and forth, frame, which is adjusted, passes through the between ring (3) and main cylinder (2)
Two locating parts (5) limitation frame adjust ring (3) can only relatively main cylinder (2) circumferentially rotate, the end periphery of main cylinder (2) is equipped with master
Cylinder threaded portion (21), main cylinder (2) are threadedly coupled by main cylinder threaded portion (21) with video camera adapter ring, when focusing main cylinder (2) relatively
Video camera adapter ring remains stationary, by rotation frame adjust ring (3) move axially back and forth the relatively main cylinder (2) of frame (1) with
Focusing.
2. lens focusing device according to claim 1, it is characterised in that: the lens focusing device further includes diaphragm tune
It saving component (6), diaphragm adjusts component (6) and includes moving-coil (61), band rotating ring (62), drives nail (63) and aperture setting ring (64),
Moving-coil (61) is nested in frame (1) with being able to rotate, and is circumferentially offered on frame (1) and is connected to the internal frame of frame (1)
Resigning long hole (12), band rotating ring (62) are located between main cylinder (2) and frame (1) and are nested on frame (1) periphery, band rotating ring
(62) it is equipped with band rotating ring elongated slot (621), moving-coil (61) extends outward a long handle (611) by frame resigning long hole (12),
And long handle (611) extend into band rotating ring elongated slot (621) and drives moving-coil (61) rotation, aperture setting ring by band rotating ring (62)
(64) it is nested on main cylinder (2) periphery, main cylinder (2) is equipped with main cylinder resigning long hole (22), and nail (63) is driven to step down across main cylinder
Aperture setting ring (64) is connected so that can be controlled by aperture setting ring (64) with rotating ring (62) by long hole (22) with rotating ring (62)
System rotates and then drives the rotation of moving-coil (61) to adjust diaphragm.
3. lens focusing device according to claim 2, it is characterised in that: be threadedly coupled on the aperture setting ring (64)
There is aperture setting ring fastening nail (65) to lock aperture setting ring (64) after the completion of diaphragm is adjusted.
4. lens focusing device according to claim 1, it is characterised in that: the first locating part (4) connection setting exists
On frame (1), main cylinder (2) inner surface is equipped with the axial straight trough (23) matched with the first locating part (4), passes through the first limit
Part (4) limitation frame (1) can only relatively main cylinder (2) axially straight trough (23) move forward and backward and cannot main cylinder (2) relatively it is circumferential
Rotation.
5. lens focusing device according to claim 1, it is characterised in that: the second locating part (5) connection setting exists
Frame is adjusted on ring (3), and main cylinder (2) inner surface is equipped with the circumferential annular groove (24) matched with the second locating part (5), is passed through
Second locating part (5) limit frame adjust ring (3) can only relative to main cylinder (2) circumferentially annular groove (24) rotate and cannot be opposite
Main cylinder (2) edge moves axially back and forth.
6. lens focusing device according to claim 5, it is characterised in that: offered on the main cylinder (2) and be connected to week
To the through-hole (25) of annular groove (24), the second locating part (5) adjusts ring in frame by through-hole (25) detachably connected setting
(3) it is matched on and with circumferential annular groove (24).
7. lens focusing device according to claim 1, it is characterised in that: be threaded with frame on the main cylinder (2)
It adjusts ring fastening nail (26) and adjusts ring (3) to lock frame after the completion of focusing.
8. lens focusing device according to claim 1, it is characterised in that: the frame adjusts ring (3) and extends main cylinder
(2) front end and formation adjust the rotation section (31) of ring (3) convenient for rotation frame.
9. lens focusing device according to any one of claims 1 to 8, it is characterised in that: first locating part (4) and
Two locating parts (5) are guide pin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821396638.1U CN208607411U (en) | 2018-08-28 | 2018-08-28 | A kind of lens focusing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821396638.1U CN208607411U (en) | 2018-08-28 | 2018-08-28 | A kind of lens focusing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208607411U true CN208607411U (en) | 2019-03-15 |
Family
ID=65680608
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821396638.1U Withdrawn - After Issue CN208607411U (en) | 2018-08-28 | 2018-08-28 | A kind of lens focusing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208607411U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108873231A (en) * | 2018-08-28 | 2018-11-23 | 厦门力鼎光电股份有限公司 | A kind of lens focusing device |
-
2018
- 2018-08-28 CN CN201821396638.1U patent/CN208607411U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108873231A (en) * | 2018-08-28 | 2018-11-23 | 厦门力鼎光电股份有限公司 | A kind of lens focusing device |
| CN108873231B (en) * | 2018-08-28 | 2023-10-24 | 厦门力鼎光电股份有限公司 | Lens focusing device |
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